Flextone Iii And Fb4 Controller

I bought a used FB4 pedal that works (has been tested) with a Flextone ii amp. It is not working with my Flextone iii. (tested with two different straight-thru cat 5 ethernet cables) Is this Foot controller not designed for Flextone iii? If so, are there any mods that would get it to work?

That was right around the time the pedals changed over (~2001-2). The FBV pedal will work with the Flextone III, The FB series (including the FB4 and Floorboard) work with the Flextone II and previous units. Here is a link that calls out what works together: